The Arecibo Observatory may be no longer, but its thoughtful message continues to inspire astronomers and scholars worldwide.

Scientists argue that halting the increase in annual emissions is a first step — and shouldn’t be our only focus.

Even if he started it 15 years before he died, into it he poured all the work from across his life into that one painting: what he knew about anatomy, about his studies of nature, about the ...

Toxic smog engulfed much of northern India on Monday and pollution readings in New Delhi hit their highest of this pre-winter ...

The Geminid meteor shower begins Tuesday as one of the year's best meteor showers. The Geminids start in mid-November and run ...